<template>
  <el-menu default-active="1-4-1" class="el-menu-vertical-demo" background-color="#545c64" text-color="#fff" active-text-color="#ffd04b" @open="handleOpen" @close="handleClose" :collapse="isCollapse">
    <!-- title -->
    <h3>{{isCollapse ? '后台' :'后台管理系统'}}</h3>
    <el-menu-item @click="clickMenu(item)" v-for="item in noChildren" :index="item.path" :key="item.path">
      <i :class="'el-icon-' +item.icon"></i>
      <span slot="title">{{item.label}}</span>
    </el-menu-item>
    <el-submenu v-for="item in hasChildren" :index="item.path+''" :key="item.path">
      <template slot="title">
        <i :class="'el-icon-' +item.icon"></i>
        <span slot="title">{{item.label}}</span>
      </template>
      <!-- 有子菜单的组件 -->
      <el-menu-item-group v-for="subItem in item.children" :key="subItem.path">
        <el-menu-item @click="clickMenu(subItem)">{{subItem.label}}</el-menu-item>
      </el-menu-item-group>
    </el-submenu>
  </el-menu>
</template>

<script>
export default {
  name: "CommonAside",
  data() {
    return {
      menu: [],
    };
  },
  methods: {
    handleOpen(key, keyPath) {
      console.log(key, keyPath);
    },
    handleClose(key, keyPath) {
      console.log(key, keyPath);
    },
    clickMenu(item) {
      console.log(item);
      this.$router.push({ name: item.name });
      this.$store.commit("selectMenu", item);
    },
  },
  computed: {
    noChildren() {
      return this.$store.state.tab.menu.filter((item) => !item.children);
    },
    hasChildren() {
      return this.$store.state.tab.menu.filter((item) => item.children);
    },
    isCollapse() {
      return this.$store.state.tab.isCollapse;
    },
    asyncMenu() {
      return this.$store.state.tab.menu;
    },
  },
};
</script>

<style lang="less" scoped>
.el-menu-vertical-demo:not(.el-menu--collapse) {
  width: 200px;
  min-height: 400px;
}
.el-menu {
  height: 100%;
  border: none;
  h3 {
    color: #fff;
    text-align: center;
    line-height: 48px;
  }
}
</style>